Question

If the crane does 5000J of work to lift the crate in 5m, how much does the crate weigh?​

Answer 1

Explanation:

U=mgh

5000=m×9.8×5

5000=49×m

5000/49=m

m=102.04816kg

Answer 2

Answer:

simple

Explanation:

Power = Work/Time

In this case the work is equal to the change in gravitational potential energy, mgh.

W = mgh = (5000 kg)(9.8m/s^2)(5m) = 490000 J

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